Chevy Silverado Code P0171 - no code for any particular….

Problem is, you aren’t sure how to fix Silverado P0171 problems in your Chevy truck. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). I cleaned the MAF, and throttle body, and installed 4 new Oxygen Sensors (Denso) and still getting occasional P0171, P0174 codes. Usually, the FPCM is a stand …. A failure counter increments if the stuck EGR valve condition is still present. Which is for a lean condition on bank 1 and 2. Take a look around and see if … See more. The OBDII trouble code P0171 - System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, or there is too much air and too little fuel. 3L engine having a check engine light illuminated and stored codes P0172 and P01. used tires 275 55r20 3 i get a p0171 and p0174 code i have changed fuel filter, have changed spark plugs,. Did complete fuel - Answered by a verified Chevy Mechanic. Anyways last night my engine light came on and got it scanned today and have the p0171 code by itself. Causes of lean condition trouble codes P0171, P0174 - GM 5 3L How to Diagnose Code P0171-P0174 on a Chevy Silverado 2500 HD. Shortly after it had a rough idle and was throwing a code P0300. - Code Popularity: 15,354 Views. It is one Diagnostic trouble code (DTC) that often appears in a car. Driving a car with the code P0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion temperature is higher. I had the same codes and in turned out my fuel pressure was …. Come join the discussion about performance, modifications, classifieds. It means that the oxygen sensor located on bank 1 behind the catalytic converter is continuously sending voltage that indicates a lean air/fuel mixture. If the codes don't come back I would not bother to look further for now. So, even though I'm good for another year, running lean might not be a good thing. I have codes p0171 p0172 p0174 p0175 p0300 p0573 p069e p0191 c0561 and c0299. A fuel pressure sensor (FPS) is used to provide the FPCM with fuel pressure feedback. This code is usually triggered by a problem with the power steering pressure sensor, the power steering pump, or the power steering hoses. P0137, P0171 or P2096 This bulletin replaces PIP5516. The cost to diagnose the P0121 Chevrolet code is 1. GM silverado: 2005 chevy K1500 5. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154. How To Fix - Chevy Silverado P0171 Trouble Code - My Pro Street (prostreetonline. 2011-2012 Chevrolet Cruze Equipped with 1. 46lbs of fuel pressure at - Answered by a verified Chevy Mechanic. The information you provide can assist other users who encounter these fault codes. Overall, be proactive when it comes to addressing the P0430 code in your Chevy Silverado to avoid potential complications down the road. What is the Cost to Diagnose the Code P0171 2014 Chevrolet Silverado? Labor: 1. If the sensor is reporting the wrong information to the PCM, it may think the fuel trim is lean when it's actually not. Next steps: Chevy Silverado and GMC Sierra Forum. The P0300 code specifically applies to the Chevrolet Silverado and refers to engine misfires. Shows codes P0171 and P2270, No blinking or flashing, just happened. Hello, I've the following code at the moment P0171 System too lean BANK 1. The code P0171 and P0174 are system lean codes and are almost always caused by a plugged fuel system or low fuel system pressure. Chevrolet Silverado 1500 Classic LT: 2005 Silverado 5. A firing order and cylinder location diagram may be needed to see which side of the engine is. Chevrolet is an American icon, known for the Camaro, Corvette, Malibu, Impala and more. 2 inch pvc pipe lowes Sep 27, 2009 · 2003 Chevy Silverado CK Engine Code P0171 and P0174 FUEL SYSTEM LEAN BANK 1 AND 2 WHAT IS THE FIX FOR THIS TROUBLE CODES. The cost to diagnose the P069E 2017 Chevrolet Silverado code is 1. P0300 Random, Multiple Misfire Detected means that your car’s computer (PCM) detected that there is a misfire in random or multiple cylinders. My 07 avalanche is pulling p0171 and p0174. This results in your engine running lean because it can't get the necessary amount of fuel. 3L, 150K miles, only modification is a K&N cold air intake. If your Silverado’s PCM detected a lean condition, it would store P0171. code p0171, and p0174 set ses light on. Check Engine Light? System Too Lean - Code P0171 or P0174 on Your Car or Truck. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Show Less. The fault codes are coming up as p0171 and p0174 running lean on both banks, it's running rough at idle and will sometimes stall A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. 6K members Since 2009 A forum community dedicated to Chevrolet. is tmobile.down The diagnostic trouble code (DTC) P228C indicates “Fuel Pressure Regulator 1 Exceeded Control Limits – Pressure Too Low. For example the 2015 Chevy Silverado 1500 with a regular cab and long box weighs 4,68. 24 hour home improvement store near me By clicking "TRY IT", I agree to receive newsletters and promotions from Mon. It's a general powertrain code, which means that it has the same meaning regardless of who manufactured the vehicles (1996+). Ok -Just went through this on mine. Checked codes, P0131, P0171, and now, P0300. Jump to Latest Follow A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. I would check fuel preassure and fuel regulator first for leak down, may have a bad injector on that side of engine. okay good! then lets clear the codes and give it a test drive. - Repair Importance Level: 2/3. This is just one of the solutions for you to be successful. Stall/sputter @ idle, especially if started with the remote start. P0121 is an engine code representing a malfunction in the throttle position sensor, which can cause fuel efficiency to drop. P0171 and p0174 2002 Chevy Silverado. It’s official: a fully electric Chevy Corvette is coming — with new battery technology to boost its range, acceleration and efficiency. 10 R&P Trifecta Trans Cal front eLocker 2006 Chevrolet Silverado LT CCSB 6. When the P0133 code is set, it means that the O2 sensor isn’t altering the voltage output as it should when the air-fuel ratio changes. codes P0171, P0174, P0440 P0171 to lean bank 1 P0174 to lean bank 2 P0440 Evap system malfunction - Chevrolet 2000 Silverado question. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. van horn stevens point cars Now, if I unplug the MAF, the fuel trims go -3% ST and +3% LT. P0172 and P0175: System Too Rich. A common misdiagnosis is to replace oxygen sensor, MAF, and/or intake manifold gaskets. The cost to diagnose the P0171 2017 Chevrolet Silverado code is 1. The codes only started showing up after I put in my oil catch can. 3 i keep getting a p0171 and p0174 code set quick i have replaced MAF O2 BANK 1 SENSOR 1 - Answered by a verified Chevy Mechanic. The P0324 code stands for “Knock Control System Error,” which means the powertrain control module (PCM) didn’t receive the right response from the knock sensor. Toyota Highlander | The Best Model Year For Every Budget. First time around I replaced the fuel pressure sensor on the fuel line, and the check engine light went out for about a week. Once the new MAF sensor is fitted, the Silverado's ECU will. If your Chevy Silverado has the P0304 trouble code, you should know that it's about as common of a code as there is. With most vehicles, the most common cause for the P0174 or P0171 code to show is a vacuum leak. Many aftermarket stereos, on the other hand, have auxiliary inputs, iPod control. Causes of the p0172 Code in Chevy Silverado are outdated PCM software, P0171 Chevy Cruze – Fuel System Too Lean. 7:1 ratio necessary for the engine to run optimally and efficiently. A P0327 code on a Chevy Silverado indicates a problem with the Knock Sensor (KS). I have cleared them multiple times and they are still coming back. Look for a vacuum leak around the first cylinder or a bad fuel injector. 6L Equinox 2018 2019 Diesel (LH7) Silverado 2017 2018 6. I replaced the sparks plugs and wires because it had not been done in a year and a half, and the truck was starting to run rough. A few months ago the engine warning light came on and the codes were read as P0101, p0171, p0174, and p0442. Vacuum leaks at the intake manifold, throttle body, or injector o-rings. For my '04 Sierra 3500, I've just recently been getting these codes: P0101 Mass or Volume Air Flow Circuit Range / Performance Problem. com! 02 Chevy silverado P0171, P0174, and P0300. 3 Already Tried: 2001 Chevrolet Silverado RWD 4. 3l V8 with 161,000 miles (260,000kms) and It has a P0300 Random Misfire code. P0171and p0174 code can be caused by : The MAF (Mass Air Flow) Sensor is dirty or faulty. I have a 1999 chevy truck with a rebuilt engine 4. Last week my check engine light came on. Bunch of p codes where do i start? p0138, p0136, p0137, p0171, p0606Toyota fault code 15 Light toyota engine check tacoma p0420 code induced info forumsToyota matrix code 2003 solenoid …. To diagnose the P0961 Chevrolet code, it typically requires 1. I have a 2005 chev Silverado 1500 5. P0171 p0174 ford p2096 silverado chevy code p1273 dodge p0344 diagnosis codes nissan ram escape trouble wrangler journey murano sentraHow to diagnose code p0171-p0174 on a chevy silverado 2500 hd P0171 and p0174 chevy silveradoCode p0404 chevy silverado. 3 P0324 Ticking Noise in Engine · 2017 Toyota Tacoma P0300 And Sparkplu. 26 2011 Chevy Silverado Radio Wiring Diagram - Wiring Database 2020. When your fuel system leaks, more air and less fuel will enter the engine's cylinders. After a day of towing a boat with no issues, this morning when I started it up I noticed a rough idle. a 1998 chevy van 3500 with 2 trouble codes 1 is po131 o2 sensor,bank 1 2nd code is po171 to lean bank 1 is this just a 02 sensor problem,engine pops when tring to accelerate,idles ok mil is on! … read more. Here's a great YouTube video on how to find a vacuum leak. xfinity wifi mobile app The fuel pressure is still low 50 with a new pump. 2014 Silverado LTZ Z71 Code P0121 - 2014-2018 Silverado & Sierra. It is common for most auto repair shops to charge between $75 and $150 per hour. The alert was set off on Bank 1. turn the key again and it might just sound …. Aug 21, 2022 · The P0171 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. P0171 Chevy – What Is Causing This Trouble To Your Chevy? Harry Gibson on February 27, 2023 No Comments. liar quotes images The air/fuel ratio is measured in the exhaust stream by the oxygen (O2) sensors. Is there a separate regulator, i thought the drive module did it all. checked everything, cleaned the maf and TB, still coding. Hi all, Seemingly out of nowhere, i am getting a too lean bank 1 & 2, P0171 & P0147 check engine light code a day after resetting it or so. Most likely the intake manifold gaskets. Chevy Silverado Throttle Body - TPS - Code P0121 install - YouTube. A common area of vacuum leak on this engine is the intake manifold …. It’s a general powertrain code, which means that it has the same meaning regardless of who manufactured the vehicles (1996+). A P1174 & P1175 trouble code means that your air to fuel ratio is either running too lean or too rich. Connect it to the vehicle's diagnostic port, usually located under the dashboard, and follow the user guide to read the trouble code. This is what the dealer needs to check to …. 2018 GMC Canyon SLT CCSB V6 Mallett S/C 4. What Does the P015B Code Mean? Diagnostic trouble code (DTC) P015B stands for “O2 sensor Delayed Response – Lean to Rich (Bank 1, Sensor 1). With the engine running, observe the affected Long Term FT parameter with a scan tool. commanded vent solenoid & purge solenoid to verify operation. The codes that were stored were P0171 & P0300. I have also replaced the MAF sensor and put a bottle of GM fuel treatment through my system on two different tanks of …. I have a 2008 Chevy Silverado extended cab with 5. 6 liter engine came into the shop with a complaint of a check engine light and stalling problem. Other causes can include dirty fuel injectors, a faulty mass air flow sensor, or a leaking intake manifold gasket. Here is what you need to know about the P0171 code. Bank 2: A P0174 DTC tells you that bank 2 is the one. ace hardware near my location I replaced intake manifold gasket and cleaned MAF. This is a new problem with this vehicle. P0101, P0171, P0174 all showed up Already cleaned MAF and TB then blew out a somewhat new looking air filter (not a K&N style reusable) Codes went away for about 4 days, which is the longest it has ever gone without them. P0191 OBD-II Trouble Code: Fuel Rail Pressure Sensor Circuit Range/Performance Joined the club, out of nowhere threw this code. The most common cause of P0101 is a bad MAF sensor. 0L, 4X4 with 131,000 miles all original no after market modes. I have 4 codes p0332, p1416, p0171 and p0174. :lol: 6" Skyjacker lift w/Edlebrock dual. 4-chevy-silverado-code-p0300-with-p0171-and-rough-idle 3 Downloaded from resources. Shorted or Open Connectors and Wiring Harness. A P0171 is one of the codes it can throw. The cost to diagnose the P1682 2017 Chevrolet Silverado code is 1. Over the last 4 months, The P0171 and P0174 would show up after attempted fixes and codes resets after about 40 miles. Showing a pending code p00d9 on my 2000 Silverado 1500 5. I picked up this 04 silverado 1500 4x4 a few weeks ago. The most common causes of P0171 are a bad Oxygen sensor, a vacuum leak, or a dirty MAF sensor. The P0171 could very well be a byproduct of the faulty Oxygen Sensor. MAP Sensor The MAP (Manifold Absolute. James Davis · 53K views ; P0171 System Too Lean bank 1 Chevy Trailblazer "Fixed with no parts". cberni1 Discussion starter I too had the rough start problems that went away after the engine warmed up and the same ODBII codes (P0171 Too lean Bank 1, P0174 Too lean Bank 2, P300 Random misfire, P0420 Catalytic system below efficiency …. RedSLEd · Administrator, How-To Author, 🏅TOTM. May 14, 2018 · A poor fuel pump or plugged fuel filter could also cause a low fuel pressure. I looked around and saw the right PVC valve tubing was cracked, so I tracked down a new one and put it on. In my case this is all that show up on the code reader. This means that your cylinder-to-cylinder air to fuel ratio is not balanced properly. 2 LTZ-Ski Doo's-FLHR-F3S Spyder-Boats. Had a Check Engine Light Yesterday on the way to work. Silverado wiring diagram chevy radio chevrolet 2006 version. P2271 is a generic DTC trouble code that can affect the Chevy Silverado. P0171 is fuel trim lean upstream oxygen sensor left cylinder bank. P219A Chevrolet Code - Fuel Trim Cylinder Balance …. Learn what P0174 code means plus more in this article. Have A 2002 Chevy 2500 Hd 4wd Auto, 50,000. The cost to diagnose the P062B Chevrolet code is 1. Everyone was telling me it was my O2. It also serves as an additional resource to prep for ASE certification, and as a useful reference for practicing professionals. the subject vehicle is a 2006 Chevy Equinox equipped with the 3. sgt fahey connecticut lawsuit The computer controls the on time for the injectors to adjust the fuel mixture. It almost goes without saying that checking and changing your vehicle’s fluids regularly is essential for keeping it running its best. The P0131 code warns about a low voltage signal from the oxygen sensor 1 on engine bank 1. Repairs made= New fuel pump - replaced fuel pressure regulator (FPR) - cleaned the mass air flow sensor ( MAF ), replaced fuel filter and o2 sensors. P0174- Fuel Trim System Lean → Bank 2: P0174 indicates that the side of the engine with the first cylinder (Bank 2) is running lean. I got a new intake gasket when I put it back together and ever since I've been blowing these two codes. At the same time, diagnostics for P015B and P015D are also …. When it came back on, I dropped the fuel tank and replaced the fuel tank pressure sensor. The most common cause of the P0171 code – and the P0170 and P0173-P0174 codes – is unmetered air entering the combustion system. Chevy / GMC Duramax 11-16 LML Forums. P0174 and occasionally P0171 along with it at idle after. Chevrolet Colorado 2015-2016 3. checked P0121 code: throttle/pedal position sensor "a" circuit range Silverado ltz z71 p0121 code gm trucks Throttle p0121 p2101 actuator control position motor code toyota body performance chevy sensor circuit pedal ford tahoe range problem carparts. The cost to diagnose the P0496 Chevrolet code is 1. I have a Harbor Freight OBD 2 code reader and got the codes P0102/P0171/P0174 on the reader. The most common problem is far and away the first one listed below. 3 engine setting codes p171 p174 already replaced mas air flow and checked for leaks - Chevrolet 1999 Silverado 1500 question. todd grande wikipedia 2011 Silverado with Intake and exhaust CEL Code P0171 and P0. 2005 Chevrolet silverado 1500 4. If the problem persists the front oxygen (O2) sensor may need to be replaced. amarillo texas houses for sale 3 L rough start and dying while idling or taking off. The past few days its gotten worse. Scan revealed p0171, and p0174 (lean banks). That means the car computer noticed the engine is running lean. Replace 02 sensor, drivers side front, the p0171 code means that bank 1 (left bank) is running lean. If you’re a dedicated Chevy Silverado aficionado like many of us, this beast’s P0101 Diagnostic Trouble Code (DTC) might be all too familiar. i have cleaned the Map sensor and checked for vacuum leaks. What are the symptoms of the P0171 code? Symptoms of the P0171 code may include: Loss of power. I just bought a 99 Chevy Silverado 5. It's possible there is a wiring/connector issue doing it, and it's possible that if the engine isn't running right, that cause use up the cat's faster. Your TPS is connected to a reference wire with five volts and typically a ground wire. In this context, “lean” refers to a condition where there is too much air relative to fuel. Took it to AutoZone and got engine codes P0171 …. The P2271 code refers to the post-catalytic converter oxygen sensor on bank 1, sensor 2. The 2019 Chevy Silverado 1500 LTZ is the perfect truck for those who want to cruise in style. 4L turbocharged 4-cylinder engine, commonly found in the Chevy System Too Lean - Code P0171 or P0174 on Your Car or Truck. Codes out p0101, p0154, p0171, p0174, p0300 idles rough when cold but not all the time. Air Intake Hose: Find the air intake hose that connects to the engine. AL514 MECHANIC; 4,099 POSTS; Hello, is this a gas/ethanol engine or just gasoline? These codes p0171 and p0174 are both bank 1 and bank 1 lean codes. A rich fuel mixture basically means that there's either too much fuel. Problem is, you aren't sure how to fix Silverado P0171 problems in your Chevy truck. Browse Categories Answer Questions Sep 24, 2009 • 2004 Chevrolet Silverado 1500 Crew Cab. 0L engine and are experiencing an illuminated check engine light and st. Any ideas? - Answered by a verified Chevy Mechanic. Code P0171 indicates Bank 1 of the engine has a lean fuel mixture. i get p0171 and p0174 code on a 2003 chevy silverado 1500 5. P0171 indicates that your Chevy Silverado is either getting too much air or not enough fuel. The P0171 is pointing to the Fuel System running "lean". If your scanner logs this code, the guide below will help you address it. dr sebi approved herbs (I normally give it an hour) 4. I looked around and saw the right PVC valve tubing was cracked, so I tracked down a new one and put it …. Firstly You should check the fuel pump pressure data from the computer. The last couple of winters, when the outside air is cold, would throw the P0171, but I never noticed any change in performance, and it would not throw a code on warm days, so I ignored it. Just Google the codes followed by your car's make and model, for example: "P0171 and P0174 Ford Expedition. Truck was taken to a shop for trouble codes p0171 and p0174 system bank 1 and 2 Lean. ripcord ldr1.5 This code indicates that there is a problem with your truck's Mass Air Flow (MAF) sensor, specifically, a Range/Performance issue. Feb 5, 2018 · A failure counter increments if the stuck EGR valve condition is still present. P0300 is a generic OBDII code that can occur with the Chevy Silverado. It is also one of the most common codes. 2019 Chevy Silverado 2500 High Country L5P CC/SB S&B CAI, Banks Derringer & Pedal Monster w/iDash, Banks differential cover, Bilstein 5100 …. Every few days I get the code P0171 lean on bank 1. Car shoppers, take note: The Chevy Volt has received a $4,400 price cut amid low sales and a new model. P0455, P0446, P0442, P0440, or P0411: Problem with the evaporative system. 1999-2005 Chevrolet Avalanche, Express, Silverado, Suburban, Tahoe, …. replaced the intake manifold and they still. 3d printed uzi P0302 is a real drivability concern and should be dealt with right away. It goes out when the temperature climbs above 45 to 50 degrees. The electronic throttle actuator control module uses this information when determining how much to open or close the electronic throttle …. P0452 Gmc Fuel Tank Pressure Sensor Circuit Low Voltage. The cost to diagnose the P0171 2018 Chevrolet Silverado code is 1. Causes and Fixes Chevy Silverado 5. cylinder 2 8505 misfires,4 6348 m. Checked for vacumn leak (s) with water, carb cleaner, …. 3 with 34,000 miles throwing P0171 & P0174 codes just showed up. To diagnose the P0796 Chevrolet code, it typically requires 1. The cost to diagnose the P0301 Chevrolet code is 1. The most common causes of P0171 are the purge valve or a vacuum leak. Both of these get triggered by the upstream oxygen sensor in your Chevy Silverado. When a vehicle has the fault code P0171, it means that computer can no longer automatically adjust the mixture between air and fuel. 4 turbo code p0171, p1101 Cruze p1101 idle2012 chevy cruze 1. And p0171 meansBasically this means that an oxygen sensor in bank 1 has detected a lean condition (too much oxygen in the exhaust). Code Number Code Description Related Codes P0175 System Too Rich (Bank 2) P0171 - System Too Lean (Bank 1) - - P0172 - System Too Rich (Bank 1). Other than this problem the ruck runs great. Incorrect fuel injection operation frequently results in the Chevy Silverado throwing the P0174 code. Chevrolet Silverado 1500 Classic LT: 1997 GM 5. Hey gang - wanted to share my experience working through the P0171 and P0174 (too lean bank 1 and too lean bank 2) codes. The P0172 DTC means that the car’s computer has determined that the fuel system is running too rich. As a result, the air-fuel mixture will be far off the ideal 14. Chevy Silverado P0171 and P0174 Trouble Codes. 4 Chevy Silverado Code P0300 With P0171 And Rough Idle 1 4 Chevy Silverado Code P0300 With P0171 And Rough Idle Yeah, reviewing a book 4 Chevy Silverado Code P0300 With P0171 And Rough Idle could build up your near friends listings. P0171 code on Chevy Cruze 2012 1. co 👈== How to Fix CHEVROLET P0420 ==Engine Code CHEVROLET P0420 Savin. Jan 19, 2021 · I have a 2004 Silverado Z71, 5. OBD-II P0000-P0999 Powertrain Codes [Archive] If you shop at Amazon. This guide will provide a step-by-step breakdown of how to diagnose and repair this code. Sunday, April 10th, 2022 AT 1:21 PM. These are estimated costs to Fix p0175 Chevy Silverado: Vacuum leak- $100-$200. I am getting intermittent P0171 and P0174 (O2 sensors) codes along with a very intermittent P0107, P0101, and P0300 (misfires on cylder 1 and 7 and random cylinder misfire). amazon bobcat parts Oct 4, 2012 · Engine Code P0171, P0174. Repairing the exhaust- $100-$200. This code is for a lean condition on bank 1. Perform a fuel injector balance test for all 8 cylinders. Learn common causes and solutions to these trouble codes. Only thing to report is that I just had a one day trip with 300 or so miles and filled it up with gas just before I got home. family AND "Andrew Houston" OR "Drew Houston" OR "Andy Houston" ; Oxygen Sensor– The P0175 code …. So today I was driving my 04 GMC Sierra 1500 4. The P0496 code indicates that there’s an incorrect amount of intake vacuum flow occurring in the car’s EVAP system. Take a look around and see if you can find a vacuum leak. Diagnosis: It is important to complete the entire diagnostic. The 2015 Chevy Silverado has a gross vehicle weight rating, or GVWR, of 9,500 lbs. The fuel rail pressure sensor is found in vehicles with an electronic returnless fuel injection system. co 👈=====Engine Code CHEVROLET P0451 Saving R. I have cleared those codes out four times since it started 6 days ago. p0171/4 is the front o2 sensor monitored a lean condition for longer than a set amount of time that the pcm couldn't correct for, meaning the engine is running lean or extra air is getting in to the exhaust. - Answered by a verified Ford Mechanic. Straight into limp mode on the highway. Come join the discussion about performance, modifications. It looks like more people are on here, or at least more people may be able to respond, so I'm posting my. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright. Common causes for this code include a dirty or faulty HO2S2 (Sensor 2), wiring or circuit problems for HO2S2, and incorrect fuel pressure. In short, P0172 refers to bank 1 having a rich fuel mixture to the engine. russ troll south county rod and gun club The Diagnostic Trouble Code (DTC) will be set when the ECM does not detect an HO2S voltage greater than 800 mV before accumulated mass airflow exceeds a calibrated value. Cylinders 1, 3, 5, and 7 (V8 5. to/2KdwdQTBuy Replacement Throttle Body Here: https://amz. About 1-2 days later I got the above codes. Though the Engine/Powertrain Control Module (ECM/PCM) can restore a lean situation, it can only do so to a certain extent. Around the intake itself and intake manifold bolts. Bank 1 indicates it’s located on the side that contains the #1 cylinder. 4K members Since 2009 A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and.